Question

solutions again ...
y-5x=-6
3y-15x=-12

Answer 1

Hint: Divide both sides of the second equation by 3

Answer 2

how? i dont get what u mean

Answer 3

Really bro?

Answer 4

yes. i am bad at this crap

Answer 5

3(y - 5x) = 3(-4)
y - 5x = -4

Answer 6

Now do you see?

Answer 7

i think so

Answer 8

So you're left with

y - 5x = -6
y - 5x = -4

Do you know what this means?

Answer 9

no solutions?

Answer 10

Exactly

Answer 11

thanks!

Answer 12

Yeah, I do that first to make sure there are no solutions. Usually if you are able to reduce one or both equations to a simpler form, chances are you'll either have no solutions or at the very least, solving the system will be easier.

Answer 13

ok thank you